Home / 421,200.36-581,236.44-230,213.92

Finding the Fourth Proportional to 421,200.36, 581,236.44 and 230,213.92

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Solution

The fourth proportional to 421,200.36, 581,236.44 and 230,213.92 is: 317,684.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,200.36 : 581,236.44 = 230,213.92 : x
  2. Step 2: Convert to fraction form
    421,200.36/581,236.44 = 230,213.92/x
  3. Step 3: Cross multiply
    421,200.36x = 581,236.44 × 230,213.92
  4. Step 4: Simplify right side
    421,200.36x = 133,808,719,299.25
  5. Step 5: Solve for x
    x = 133,808,719,299.25/421,200.36
  6. Step 6: Final answer
    x = 317,684.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.